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Shure 97U29 / S-36

Discussion in 'Microphones, Speakers & Audio Processing' started by KM5WX, May 11, 2012.

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  1. KM5WX

    KM5WX Ham Member QRZ Page

    I think I asked this before but I'm not sure so bear with me. Thanks. This is a desk mic that was on a Motorola business band rig back in the 70's. I belive the 97U29 is the model number and the S-36 is the stand. What I want to know is what the inpedance is and is it dynamic, electret or what? If it's a decent mic I might try it on my Kenwood hybrids. Thanks again, and I believe I have at least one electro-voice 638 I may sell if the price is right. Make me an offer! Richard KM5WX@bellsouth.net
     
  2. W9GB

    W9GB Ham Member QRZ Page

    Yes, you asked this question on April 15, 2012 at eHam.net Boatanchor forum
    http://www.eham.net/ehamforum/smf/index.php?topic=82379.0

    The 1950s era model 97u29 refers to the Shure 510MD Hercules and S36 stand which were sold as
    the Fixed-Station Dispatcher microphone to many LMR mfg (GE, RCA, Motorola, etc.).

    Shure 410 and 510 series -- Manual
    http://www.shure.com/idc/groups/tech_pubs/@global_managed/documents/webcontent/us_pro_410_ug.pdf
    Shure 510MD series -- Manual
    http://www.shure.com/idc/groups/public/documents/webcontent/us_pro_510md_ug.pdf

    Shure made this Style in TWO versions,
    a MID-Z, 4,000 ohm (Rudak), Controlled Reluctance element and

    a HIGH-Z 100,000 ohm (Hercules), Controlled Magnetic element.

    Current Shure classic designs (in production)
    http://www.shure.com/americas/products/microphones

    This microphone can be found on many web sites.
    http://vintagemike.wordpress.com/2011/11/18/shure-general-electric-model-97u29/

    PHOTOGRAPHS are more useful in positive ID of OEM microphones.
    97u29.jpg
     
    Last edited: May 11, 2012
  3. KM5WX

    KM5WX Ham Member QRZ Page

    Thanks Greg, I thought I had asked before but the short term is gone if you know what I mean!!HIHI Thanks for the info. The mic was in a box when I got it. It's in real nice shape so I thought I'd look for a use for it. Thanks again es 73 Richard
     
  4. W9GB

    W9GB Ham Member QRZ Page

    It would be a nice microphone for that Vintage look of a 1950s amateur radio station.
    Now you need that classic Boatanchor to pair with it !
     
  5. KM5WX

    KM5WX Ham Member QRZ Page

    Well I have a Drake RV-4c with the rv-4 remote vfo. The ms-4 speaker and matching power supply. Or several Kenwood hybrid rigs. Which do you suggest. Oh I just noticed it's low impedance. What will happen if I try it. no work or work poorly? Thanks again Richard KM5WX
     
  6. W9GB

    W9GB Ham Member QRZ Page

    Did you actually look at the internal Shure sticker on the microphone element,
    to see which one is installed?

    Whether the electromagnetic wave is 60 Hz power frequency; audio/music (200-20,000 Hz) or
    Radio Frequency (RF) ... it is just a matter of "impedance matching" !!

    For audio, you use audio transformers. Heil sells he XT-1 for this purpose.
    Mouser has catalog pages on various models.
     
    Last edited: May 13, 2012
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